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Thomas Fitton & Co. of Manchester.
1851 Partnership between Thomas Fitton, Abraham Bairstow and Hiram Barker, machine and tool makers, 19 Spear Street, Dale Street, Manchester, under the firm Thomas Fitton and Company, dissolved by mutual consent. Business to be carried on as Fitton and Barker 
1852 Partnership between Thomas Fitton and Hiram Barker, machine and tool makers, 19 Spear Street, Dale Street, Manchester, dissolved by mutual consent. Business to be carried on by Hiram Barker
1853 The following are listed as 'machine maker, (T. Fitton and Co)': Hiram Barker: Foster Street, Crowther Street, Salford; Abraham Bairstow: 11 Gay Street, Hulme; Thomas Fitton: 26 Brydon Street, Ardwick. Address of Thos Fitton and Co, machine and tool makers given as 19 Spear Street, and separately listed as Fairfield Street